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-rw-r--r--hw/tsc2005.c593
1 files changed, 0 insertions, 593 deletions
diff --git a/hw/tsc2005.c b/hw/tsc2005.c
deleted file mode 100644
index a771cd5e52..0000000000
--- a/hw/tsc2005.c
+++ /dev/null
@@ -1,593 +0,0 @@
-/*
- * TI TSC2005 emulator.
- *
- * Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
- * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 or
- * (at your option) version 3 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "hw/hw.h"
-#include "qemu/timer.h"
-#include "ui/console.h"
-#include "hw/devices.h"
-
-#define TSC_CUT_RESOLUTION(value, p) ((value) >> (16 - (p ? 12 : 10)))
-
-typedef struct {
- qemu_irq pint; /* Combination of the nPENIRQ and DAV signals */
- QEMUTimer *timer;
- uint16_t model;
-
- int x, y;
- int pressure;
-
- int state, reg, irq, command;
- uint16_t data, dav;
-
- int busy;
- int enabled;
- int host_mode;
- int function;
- int nextfunction;
- int precision;
- int nextprecision;
- int filter;
- int pin_func;
- int timing[2];
- int noise;
- int reset;
- int pdst;
- int pnd0;
- uint16_t temp_thr[2];
- uint16_t aux_thr[2];
-
- int tr[8];
-} TSC2005State;
-
-enum {
- TSC_MODE_XYZ_SCAN = 0x0,
- TSC_MODE_XY_SCAN,
- TSC_MODE_X,
- TSC_MODE_Y,
- TSC_MODE_Z,
- TSC_MODE_AUX,
- TSC_MODE_TEMP1,
- TSC_MODE_TEMP2,
- TSC_MODE_AUX_SCAN,
- TSC_MODE_X_TEST,
- TSC_MODE_Y_TEST,
- TSC_MODE_TS_TEST,
- TSC_MODE_RESERVED,
- TSC_MODE_XX_DRV,
- TSC_MODE_YY_DRV,
- TSC_MODE_YX_DRV,
-};
-
-static const uint16_t mode_regs[16] = {
- 0xf000, /* X, Y, Z scan */
- 0xc000, /* X, Y scan */
- 0x8000, /* X */
- 0x4000, /* Y */
- 0x3000, /* Z */
- 0x0800, /* AUX */
- 0x0400, /* TEMP1 */
- 0x0200, /* TEMP2 */
- 0x0800, /* AUX scan */
- 0x0040, /* X test */
- 0x0020, /* Y test */
- 0x0080, /* Short-circuit test */
- 0x0000, /* Reserved */
- 0x0000, /* X+, X- drivers */
- 0x0000, /* Y+, Y- drivers */
- 0x0000, /* Y+, X- drivers */
-};
-
-#define X_TRANSFORM(s) \
- ((s->y * s->tr[0] - s->x * s->tr[1]) / s->tr[2] + s->tr[3])
-#define Y_TRANSFORM(s) \
- ((s->y * s->tr[4] - s->x * s->tr[5]) / s->tr[6] + s->tr[7])
-#define Z1_TRANSFORM(s) \
- ((400 - ((s)->x >> 7) + ((s)->pressure << 10)) << 4)
-#define Z2_TRANSFORM(s) \
- ((4000 + ((s)->y >> 7) - ((s)->pressure << 10)) << 4)
-
-#define AUX_VAL (700 << 4) /* +/- 3 at 12-bit */
-#define TEMP1_VAL (1264 << 4) /* +/- 5 at 12-bit */
-#define TEMP2_VAL (1531 << 4) /* +/- 5 at 12-bit */
-
-static uint16_t tsc2005_read(TSC2005State *s, int reg)
-{
- uint16_t ret;
-
- switch (reg) {
- case 0x0: /* X */
- s->dav &= ~mode_regs[TSC_MODE_X];
- return TSC_CUT_RESOLUTION(X_TRANSFORM(s), s->precision) +
- (s->noise & 3);
- case 0x1: /* Y */
- s->dav &= ~mode_regs[TSC_MODE_Y];
- s->noise ++;
- return TSC_CUT_RESOLUTION(Y_TRANSFORM(s), s->precision) ^
- (s->noise & 3);
- case 0x2: /* Z1 */
- s->dav &= 0xdfff;
- return TSC_CUT_RESOLUTION(Z1_TRANSFORM(s), s->precision) -
- (s->noise & 3);
- case 0x3: /* Z2 */
- s->dav &= 0xefff;
- return TSC_CUT_RESOLUTION(Z2_TRANSFORM(s), s->precision) |
- (s->noise & 3);
-
- case 0x4: /* AUX */
- s->dav &= ~mode_regs[TSC_MODE_AUX];
- return TSC_CUT_RESOLUTION(AUX_VAL, s->precision);
-
- case 0x5: /* TEMP1 */
- s->dav &= ~mode_regs[TSC_MODE_TEMP1];
- return TSC_CUT_RESOLUTION(TEMP1_VAL, s->precision) -
- (s->noise & 5);
- case 0x6: /* TEMP2 */
- s->dav &= 0xdfff;
- s->dav &= ~mode_regs[TSC_MODE_TEMP2];
- return TSC_CUT_RESOLUTION(TEMP2_VAL, s->precision) ^
- (s->noise & 3);
-
- case 0x7: /* Status */
- ret = s->dav | (s->reset << 7) | (s->pdst << 2) | 0x0;
- s->dav &= ~(mode_regs[TSC_MODE_X_TEST] | mode_regs[TSC_MODE_Y_TEST] |
- mode_regs[TSC_MODE_TS_TEST]);
- s->reset = 1;
- return ret;
-
- case 0x8: /* AUX high treshold */
- return s->aux_thr[1];
- case 0x9: /* AUX low treshold */
- return s->aux_thr[0];
-
- case 0xa: /* TEMP high treshold */
- return s->temp_thr[1];
- case 0xb: /* TEMP low treshold */
- return s->temp_thr[0];
-
- case 0xc: /* CFR0 */
- return (s->pressure << 15) | ((!s->busy) << 14) |
- (s->nextprecision << 13) | s->timing[0];
- case 0xd: /* CFR1 */
- return s->timing[1];
- case 0xe: /* CFR2 */
- return (s->pin_func << 14) | s->filter;
-
- case 0xf: /* Function select status */
- return s->function >= 0 ? 1 << s->function : 0;
- }
-
- /* Never gets here */
- return 0xffff;
-}
-
-static void tsc2005_write(TSC2005State *s, int reg, uint16_t data)
-{
- switch (reg) {
- case 0x8: /* AUX high treshold */
- s->aux_thr[1] = data;
- break;
- case 0x9: /* AUX low treshold */
- s->aux_thr[0] = data;
- break;
-
- case 0xa: /* TEMP high treshold */
- s->temp_thr[1] = data;
- break;
- case 0xb: /* TEMP low treshold */
- s->temp_thr[0] = data;
- break;
-
- case 0xc: /* CFR0 */
- s->host_mode = data >> 15;
- if (s->enabled != !(data & 0x4000)) {
- s->enabled = !(data & 0x4000);
- fprintf(stderr, "%s: touchscreen sense %sabled\n",
- __FUNCTION__, s->enabled ? "en" : "dis");
- if (s->busy && !s->enabled)
- qemu_del_timer(s->timer);
- s->busy &= s->enabled;
- }
- s->nextprecision = (data >> 13) & 1;
- s->timing[0] = data & 0x1fff;
- if ((s->timing[0] >> 11) == 3)
- fprintf(stderr, "%s: illegal conversion clock setting\n",
- __FUNCTION__);
- break;
- case 0xd: /* CFR1 */
- s->timing[1] = data & 0xf07;
- break;
- case 0xe: /* CFR2 */
- s->pin_func = (data >> 14) & 3;
- s->filter = data & 0x3fff;
- break;
-
- default:
- fprintf(stderr, "%s: write into read-only register %x\n",
- __FUNCTION__, reg);
- }
-}
-
-/* This handles most of the chip's logic. */
-static void tsc2005_pin_update(TSC2005State *s)
-{
- int64_t expires;
- int pin_state;
-
- switch (s->pin_func) {
- case 0:
- pin_state = !s->pressure && !!s->dav;
- break;
- case 1:
- case 3:
- default:
- pin_state = !s->dav;
- break;
- case 2:
- pin_state = !s->pressure;
- }
-
- if (pin_state != s->irq) {
- s->irq = pin_state;
- qemu_set_irq(s->pint, s->irq);
- }
-
- switch (s->nextfunction) {
- case TSC_MODE_XYZ_SCAN:
- case TSC_MODE_XY_SCAN:
- if (!s->host_mode && s->dav)
- s->enabled = 0;
- if (!s->pressure)
- return;
- /* Fall through */
- case TSC_MODE_AUX_SCAN:
- break;
-
- case TSC_MODE_X:
- case TSC_MODE_Y:
- case TSC_MODE_Z:
- if (!s->pressure)
- return;
- /* Fall through */
- case TSC_MODE_AUX:
- case TSC_MODE_TEMP1:
- case TSC_MODE_TEMP2:
- case TSC_MODE_X_TEST:
- case TSC_MODE_Y_TEST:
- case TSC_MODE_TS_TEST:
- if (s->dav)
- s->enabled = 0;
- break;
-
- case TSC_MODE_RESERVED:
- case TSC_MODE_XX_DRV:
- case TSC_MODE_YY_DRV:
- case TSC_MODE_YX_DRV:
- default:
- return;
- }
-
- if (!s->enabled || s->busy)
- return;
-
- s->busy = 1;
- s->precision = s->nextprecision;
- s->function = s->nextfunction;
- s->pdst = !s->pnd0; /* Synchronised on internal clock */
- expires = qemu_get_clock_ns(vm_clock) + (get_ticks_per_sec() >> 7);
- qemu_mod_timer(s->timer, expires);
-}
-
-static void tsc2005_reset(TSC2005State *s)
-{
- s->state = 0;
- s->pin_func = 0;
- s->enabled = 0;
- s->busy = 0;
- s->nextprecision = 0;
- s->nextfunction = 0;
- s->timing[0] = 0;
- s->timing[1] = 0;
- s->irq = 0;
- s->dav = 0;
- s->reset = 0;
- s->pdst = 1;
- s->pnd0 = 0;
- s->function = -1;
- s->temp_thr[0] = 0x000;
- s->temp_thr[1] = 0xfff;
- s->aux_thr[0] = 0x000;
- s->aux_thr[1] = 0xfff;
-
- tsc2005_pin_update(s);
-}
-
-static uint8_t tsc2005_txrx_word(void *opaque, uint8_t value)
-{
- TSC2005State *s = opaque;
- uint32_t ret = 0;
-
- switch (s->state ++) {
- case 0:
- if (value & 0x80) {
- /* Command */
- if (value & (1 << 1))
- tsc2005_reset(s);
- else {
- s->nextfunction = (value >> 3) & 0xf;
- s->nextprecision = (value >> 2) & 1;
- if (s->enabled != !(value & 1)) {
- s->enabled = !(value & 1);
- fprintf(stderr, "%s: touchscreen sense %sabled\n",
- __FUNCTION__, s->enabled ? "en" : "dis");
- if (s->busy && !s->enabled)
- qemu_del_timer(s->timer);
- s->busy &= s->enabled;
- }
- tsc2005_pin_update(s);
- }
-
- s->state = 0;
- } else if (value) {
- /* Data transfer */
- s->reg = (value >> 3) & 0xf;
- s->pnd0 = (value >> 1) & 1;
- s->command = value & 1;
-
- if (s->command) {
- /* Read */
- s->data = tsc2005_read(s, s->reg);
- tsc2005_pin_update(s);
- } else
- s->data = 0;
- } else
- s->state = 0;
- break;
-
- case 1:
- if (s->command)
- ret = (s->data >> 8) & 0xff;
- else
- s->data |= value << 8;
- break;
-
- case 2:
- if (s->command)
- ret = s->data & 0xff;
- else {
- s->data |= value;
- tsc2005_write(s, s->reg, s->data);
- tsc2005_pin_update(s);
- }
-
- s->state = 0;
- break;
- }
-
- return ret;
-}
-
-uint32_t tsc2005_txrx(void *opaque, uint32_t value, int len)
-{
- uint32_t ret = 0;
-
- len &= ~7;
- while (len > 0) {
- len -= 8;
- ret |= tsc2005_txrx_word(opaque, (value >> len) & 0xff) << len;
- }
-
- return ret;
-}
-
-static void tsc2005_timer_tick(void *opaque)
-{
- TSC2005State *s = opaque;
-
- /* Timer ticked -- a set of conversions has been finished. */
-
- if (!s->busy)
- return;
-
- s->busy = 0;
- s->dav |= mode_regs[s->function];
- s->function = -1;
- tsc2005_pin_update(s);
-}
-
-static void tsc2005_touchscreen_event(void *opaque,
- int x, int y, int z, int buttons_state)
-{
- TSC2005State *s = opaque;
- int p = s->pressure;
-
- if (buttons_state) {
- s->x = x;
- s->y = y;
- }
- s->pressure = !!buttons_state;
-
- /*
- * Note: We would get better responsiveness in the guest by
- * signaling TS events immediately, but for now we simulate
- * the first conversion delay for sake of correctness.
- */
- if (p != s->pressure)
- tsc2005_pin_update(s);
-}
-
-static void tsc2005_save(QEMUFile *f, void *opaque)
-{
- TSC2005State *s = (TSC2005State *) opaque;
- int i;
-
- qemu_put_be16(f, s->x);
- qemu_put_be16(f, s->y);
- qemu_put_byte(f, s->pressure);
-
- qemu_put_byte(f, s->state);
- qemu_put_byte(f, s->reg);
- qemu_put_byte(f, s->command);
-
- qemu_put_byte(f, s->irq);
- qemu_put_be16s(f, &s->dav);
- qemu_put_be16s(f, &s->data);
-
- qemu_put_timer(f, s->timer);
- qemu_put_byte(f, s->enabled);
- qemu_put_byte(f, s->host_mode);
- qemu_put_byte(f, s->function);
- qemu_put_byte(f, s->nextfunction);
- qemu_put_byte(f, s->precision);
- qemu_put_byte(f, s->nextprecision);
- qemu_put_be16(f, s->filter);
- qemu_put_byte(f, s->pin_func);
- qemu_put_be16(f, s->timing[0]);
- qemu_put_be16(f, s->timing[1]);
- qemu_put_be16s(f, &s->temp_thr[0]);
- qemu_put_be16s(f, &s->temp_thr[1]);
- qemu_put_be16s(f, &s->aux_thr[0]);
- qemu_put_be16s(f, &s->aux_thr[1]);
- qemu_put_be32(f, s->noise);
- qemu_put_byte(f, s->reset);
- qemu_put_byte(f, s->pdst);
- qemu_put_byte(f, s->pnd0);
-
- for (i = 0; i < 8; i ++)
- qemu_put_be32(f, s->tr[i]);
-}
-
-static int tsc2005_load(QEMUFile *f, void *opaque, int version_id)
-{
- TSC2005State *s = (TSC2005State *) opaque;
- int i;
-
- s->x = qemu_get_be16(f);
- s->y = qemu_get_be16(f);
- s->pressure = qemu_get_byte(f);
-
- s->state = qemu_get_byte(f);
- s->reg = qemu_get_byte(f);
- s->command = qemu_get_byte(f);
-
- s->irq = qemu_get_byte(f);
- qemu_get_be16s(f, &s->dav);
- qemu_get_be16s(f, &s->data);
-
- qemu_get_timer(f, s->timer);
- s->enabled = qemu_get_byte(f);
- s->host_mode = qemu_get_byte(f);
- s->function = qemu_get_byte(f);
- s->nextfunction = qemu_get_byte(f);
- s->precision = qemu_get_byte(f);
- s->nextprecision = qemu_get_byte(f);
- s->filter = qemu_get_be16(f);
- s->pin_func = qemu_get_byte(f);
- s->timing[0] = qemu_get_be16(f);
- s->timing[1] = qemu_get_be16(f);
- qemu_get_be16s(f, &s->temp_thr[0]);
- qemu_get_be16s(f, &s->temp_thr[1]);
- qemu_get_be16s(f, &s->aux_thr[0]);
- qemu_get_be16s(f, &s->aux_thr[1]);
- s->noise = qemu_get_be32(f);
- s->reset = qemu_get_byte(f);
- s->pdst = qemu_get_byte(f);
- s->pnd0 = qemu_get_byte(f);
-
- for (i = 0; i < 8; i ++)
- s->tr[i] = qemu_get_be32(f);
-
- s->busy = qemu_timer_pending(s->timer);
- tsc2005_pin_update(s);
-
- return 0;
-}
-
-void *tsc2005_init(qemu_irq pintdav)
-{
- TSC2005State *s;
-
- s = (TSC2005State *)
- g_malloc0(sizeof(TSC2005State));
- s->x = 400;
- s->y = 240;
- s->pressure = 0;
- s->precision = s->nextprecision = 0;
- s->timer = qemu_new_timer_ns(vm_clock, tsc2005_timer_tick, s);
- s->pint = pintdav;
- s->model = 0x2005;
-
- s->tr[0] = 0;
- s->tr[1] = 1;
- s->tr[2] = 1;
- s->tr[3] = 0;
- s->tr[4] = 1;
- s->tr[5] = 0;
- s->tr[6] = 1;
- s->tr[7] = 0;
-
- tsc2005_reset(s);
-
- qemu_add_mouse_event_handler(tsc2005_touchscreen_event, s, 1,
- "QEMU TSC2005-driven Touchscreen");
-
- qemu_register_reset((void *) tsc2005_reset, s);
- register_savevm(NULL, "tsc2005", -1, 0, tsc2005_save, tsc2005_load, s);
-
- return s;
-}
-
-/*
- * Use tslib generated calibration data to generate ADC input values
- * from the touchscreen. Assuming 12-bit precision was used during
- * tslib calibration.
- */
-void tsc2005_set_transform(void *opaque, MouseTransformInfo *info)
-{
- TSC2005State *s = (TSC2005State *) opaque;
-
- /* This version assumes touchscreen X & Y axis are parallel or
- * perpendicular to LCD's X & Y axis in some way. */
- if (abs(info->a[0]) > abs(info->a[1])) {
- s->tr[0] = 0;
- s->tr[1] = -info->a[6] * info->x;
- s->tr[2] = info->a[0];
- s->tr[3] = -info->a[2] / info->a[0];
- s->tr[4] = info->a[6] * info->y;
- s->tr[5] = 0;
- s->tr[6] = info->a[4];
- s->tr[7] = -info->a[5] / info->a[4];
- } else {
- s->tr[0] = info->a[6] * info->y;
- s->tr[1] = 0;
- s->tr[2] = info->a[1];
- s->tr[3] = -info->a[2] / info->a[1];
- s->tr[4] = 0;
- s->tr[5] = -info->a[6] * info->x;
- s->tr[6] = info->a[3];
- s->tr[7] = -info->a[5] / info->a[3];
- }
-
- s->tr[0] >>= 11;
- s->tr[1] >>= 11;
- s->tr[3] <<= 4;
- s->tr[4] >>= 11;
- s->tr[5] >>= 11;
- s->tr[7] <<= 4;
-}
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